LEGO Lawn Mower Review for Mobile Frame Zero: Rapid Attack

This set just made it into the prestige Mantis King's Good Sets for Parts list (6 if we are counting) so I figure I get this review done. Again here are our requirements and moving on!

Can you build a frame, or frames, right away?
I don't think you can so No; -5

Is it below, at, or above the golden ratio?
Alright we have 42 pieces with our bag costing $3.99 giving us a $0.10 (The math is $0.095 but you know, round up because I am sure that is what those machines do.) meeting our golden ratio for 0 points.

If you can't build a frame right away, does it have parts you should be able to put into use right away? 
This is very much a yes and why I bought it. I picked it up during a BOGO 50% off at Toys 'R' Us when I also bought more of these. I was planning to take the 'lawn mower blades' and mounting them on the sacred Umbarran MHC but so far I have failed to get something I like. Anyone have any ideas? Anyways, +5 to the Parts House.

Does it have more than a handful of immediately useful parts?

Yes, +5 points.

So here comes our total: 5 which gives us a B+ which is a fair rating for a bag of pretty much raw parts.